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What ports for VPN

  • For PPTP:
    • IP Protocol=TCP, TCP Port number=1723   <- Used by PPTP control path
    • IP Protocol=GRE (value 47)   <- Used by PPTP data path
  • For L2TP:For SSTP:
    • IP Protocol Type=UDP, UDP Port Number=500    <- Used by IKEv1 (IPSec control path)
    • IP Protocol Type=UDP, UDP Port Number=4500   <- Used by IKEv1 (IPSec control path)
    • IP Protocol Type=ESP (value 50)   <- Used by IPSec data path
    • IP Protocol=TCP, TCP Port number=443   <- Used by SSTP control and data path
  • For IKEv2:
    • IP Protocol Type=UDP, UDP Port Number=500    <- Used by IKEv2 (IPSec control path)
    • IP Protocol Type=UDP, UDP Port Number=4500   <- Used by IKEv2 (IPSec control path)
    • IP Protocol Type=ESP (value 50)   <- Used by IPSec data path